9NEWS Investigative Reporter Melissa Blasius has exclusive interviews with Dylan's parents. Below is her blog entry about the Dylan case:

It's a sad reality of my job as a journalist. Over the last 15 years, I've covered dozens of missing kids. Some are gone hours while some gone forever.

The disappearance of Dylan Redwine, however, is the most frustrating because it's so puzzling. This kid just vanished along with his cellphone and his backpack full of clothes. There wasn't even a sock left behind. At the same time, we all know that no kid just vanishes.

In case you haven't lived and breathed the Dylan Redwine case like me, let me catch you up. He's a 13-year-old kid of divorced parents. He went to visit his dad for Thanksgiving in La Plata County, which is the southwestern part of Colorado.

On the morning of Nov. 19, Dylan went missing from his dad's home in a resort area called Vallecito Lake. At first, everyone thought Dylan must have wandered into the woods and got hurt or ran away. Sheriff's investigators discounted that theory in the first couple of weeks. They are pretty confident now that someone took Dylan or someone hurt Dylan. Was it a stranger? A child predator? Did Dylan have an argument that got out of hand? Did a relative hatch some sort of elaborate kidnapping plot?

Dylan's mom and his brother Cory are blaming Dylan's dad, Mark. Mark Redwine had shied away from the public. Lots of people openly wonder if he's hiding something.

After all that, I was pretty sure Mark would never talk to me on camera, but he agreed to let me come to his house. When I arrived, it was unnerving to see the loaded shotgun on his kitchen table. Mark explained he had been receiving threatening phone calls. He also started crying right in front of the kitchen sink. The rough-around-the-edges guy talked about his bond with his lost son. I spent nearly two hours there. Mark answered every single one of my questions.

At Dylan's other home in Monument, his mom's anger was palpable. Elaine Redwine is clearly bitter toward her ex-husband, but she's also resolute that she's going to find her kid. Elaine is constantly surrounded by friends and family. Together, they raised a $50,000 reward in this case. Her answers to my questions were somewhat unexpected. She was the first to point the finger at her ex-husband. Later in our interview, she said she didn't think Mark was capable of hurting their son, and she thought Mark was a responsible dad, until now.

So who did it? It's hard to think a custodial kidnapping would not be uncovered by now. Hundreds of people scoured the country roads, waterways and woods for miles around Vallecito Lake. They found nothing.

The case has become the biggest missing-person mystery in decades in the Durango area. At the heart of it all, a fun-loving, blue-eyed boy who's supposed to turn 14 next week.

Learn more details and hear directly from Dylan Redwine's parents on 9NEWS Thursday night at 9 and 10 p.m.